Which statement about droplet size and drift is correct?

Which statement about droplet size and drift is correct?

• A. Larger droplets drift more
• B. Drift depends only on wind
• C. Smaller droplets drift more
• D. Droplet size has no effect on drift

Answer: (C)

Smaller droplets drift more because their lighter mass and slower settling speed make them more easily carried by air currents. When you spray, the wind can push these fine droplets farther from the target, and they may even evaporate slightly, turning into even smaller particles that stay airborne longer. In contrast, larger droplets have more weight and settle to the ground more quickly, making them less prone to drift. So, under the same spraying conditions, choosing smaller droplets increases drift risk, while larger droplets reduce drift but may not provide as uniform or effective coverage. That’s why the statement that smaller droplets drift more is the best answer. The others aren’t correct because drift is not driven by wind alone, and droplet size clearly influences drift; larger droplets don’t drift more, and size does matter for drift.

Smaller droplets drift more because their lighter mass and slower settling speed make them more easily carried by air currents. When you spray, the wind can push these fine droplets farther from the target, and they may even evaporate slightly, turning into even smaller particles that stay airborne longer. In contrast, larger droplets have more weight and settle to the ground more quickly, making them less prone to drift.

So, under the same spraying conditions, choosing smaller droplets increases drift risk, while larger droplets reduce drift but may not provide as uniform or effective coverage. That’s why the statement that smaller droplets drift more is the best answer. The others aren’t correct because drift is not driven by wind alone, and droplet size clearly influences drift; larger droplets don’t drift more, and size does matter for drift.